Oil-burning locomotive.



J. P. NEFF.`

' GIL BURNING LocoMonvE.

APPLICATION FILED OCT. 26. 1914.

Patented May 4, 1915.

iran sraiins raranr carica.`

JOHN P. NEFF, 0F EAST ORANGE, NEW JERSEY, ASSIGNOR, BY MESNE ASSIGNMENTS,

TO AMERICAN ARCH COMPANY, 'OF NEW YORK, N. Y., A CORPORATION 0F DELA- WARE.

OIL-BURNING LOCOMOTIVE.

incense.

Specification of Letters iatent.

Original application led October 1, 1913, Serial No. 792,782. Divided and this application filed October 26,

` 1914. Serial No, 868,652.

To all whom it may concern Be it known that L'JoI-IN P. NEFF, a citizen ofthe United States, and a resident'of East Orange, county of Essex, and State of New Jersey, have invented certain new and useful improvements in Oil-Burning Locomotives, of which the following is a specification.

My inventionr relates to improvements in locomotivesand has particular reference to improvements in the iire boxes'of locomotive boilers.

This application isa division of my pending application, Serial No. 7 92,7 82, filed October 1, 1913.

The object of my invention-is to provide an oil-burning furnace for locomotives. in which the several parts of the refractory lining shall be positively held in position; in. which parts of the fire, box lining shall mutually aid in retaining each other in posi-- tion; in which it shall be easy to replace a burned-out brick by a new one, and in which parts of the lining shall be easily removable for inspection or repair of the lower edge or mud-'ring of the lrebox.

A further object of my invention is to provide a furnace for oil-burning locomo' tives in which the thickness of refractory lining shall be proportioned, in the different parts thereof, to the severity of the action of the heat thereon, and in which the mud-ring rivets shall .be protected against the direct action of the high temperatures in the furnace without adding materially to the weight of vthe lining. v v

A further object ofl l'my invention is to provide a pan construction and a refractory ining for oil-burning locomotives by which the lower edge of the furnace, or, in other words, the mud ring, shallbe efl'ectually protected from the direct action of the heat `of combustion; and to provide alining wherein the shelf bricks can be readily removed to permit examination of the mud-ring rivets without disturbing other parts of the lining. .My invention resides in a furnace for oilburning locomotives in which the shelf bricks are positively held in position and in which they interlock with other bricks of the lining.

My invention also resides in a' construction for the lower part of a furnace, for an oilmetal pan secured to and carried by the firebox walls, and a' refractory lining having rammed May e, i915.

shelf bricks positively held in position on the shelf.

My invention also consists in the severalarrangements of parts, and in the features of construction, whereby the above and otherA objects are attained and all as hereinafter described and particularly pointed out in the appended claims.

My invention will be more readily understood by reference to the accompanying drawings forming part of this specification, and in which:

Figure l is a centralflongitudinal, vertical section of a locomotive boiler flrebox equipped with an oil burner and embodying my invention; and Fig. 2 is a transverse section of the lire box on the line 2-2 of Fig. 1.

In the equipment of locomotivel boilers for the use of oil as fuel, it has been the 0bject of inventors for some time-to simplify the construction of the pan and its lining, and it is my particular object'to provide such a construction wherein the' several bricks of the lining shall mutually retain each other in position and wherein the r'ef fractory lining can be readily Aand easily'replaced or repaired, and whichwhen once in position, shall be substantially permanent. lt has been my object to include inv such structure the protection of the lower edge of the re box, particularly 'the mud-ring,

the rivets by which the or in other words, mud-ring 1s secured.

A fire-box A, as illustrated in the draw?K ings, is madeup of a flue sheet a', a rear Y i lsheet Vo2, a lcrown sheet aS and side sheets at.

trated in the drawings the re box is closedv by a sheet iron structure B forming a pan.

1 lts outer edges are connected or secured to themud-ring by cap bolts b or some' similar'l devices. yThe central portion of this sheet iron structure is considerablyfdepressed below the lowern edge of the fire box forming a combustion chamber b2, which is somewhat longer than it is wide; The rear end b3 of .this combustion chamber" is vertical and is closed.,v The forward end b4 is also vertical, and is provided with a. centrally arranged opening b5 in which is placed or held a fuel burner 5G' by which fuel oil is forced into the combustion chamber and against the rear wall b3. The side walls t7 of the combustion 4chamber are connected at their upper edges to the inner edges of a shelf-like portion b9 of the pan B. This shelf extends completely around the depressed, central portion and forms what-may be termed the main floor of the fire box. ln order tov preserve the sheet metal structure, forming the pan, from destruction l completely cover it with a lining C of refractory material, preferably in the form of lire brick. l arrangebricks c against the upwardly and outwardly inclined sides and Vagainst the ends of the depressed portion which are of such a length that their lower ends restupon the floor 5B, and their upper ends extend slightly above the shelf of. l hold the lower ends of these bricks in position by means of floor bricks c2, which` rest upon and protect the ioor of. l protect the shelfb9 by means of shelf bricks c3, which extend from the side sheets of the fire box and project over the upper ends of the bricks c. To hold these shelf bricks in position l provide upwardly extending .projections 61 on the shelf portions of the pan, and which in the form shownA are formed' by angleirons secured to the floor. b9, and I provide the shelf bricks c3 with openings or grooves c'i in their` under `sides to receive these projections, said openings c4 providing the bricks with shoulders 05,'which engage the projections and hold the bricks c3 in position against the side sheets of the lire box. rlhe outer ends ofthe' undersides of these shelf bricks are cut away,

as shown at c", for the purpose of overlapping the heads of the rivets a7, and thus protectingthese rivets, or, in other words, the mud-ring of the vfire box against the' high temperatures of the fire box gases. As afurther means of holding the seyeral bricks .in position I'- make' the'-v grooves c* Awi'de enough to receive vthe upwardly projecting ends c7 of the side bricks c thus effectivelyjinterlocking the shelf bricks and the side bricks and causing them to mutually retain veach other in position. ref urthermord the angle iron abutment fbi 1s sometimes-de-- stroyed in the operation of the locomotive and even under such conditions the bricks with which the lining is repaired' are securely retained in position by this4 interlocking of the side and shelf bricks. yIn fact, l sometimes do away with the metallic projection 61 depending entirely upon the interlockment of the shelf and side bricks to retain the shelf bricks in position upon the shelf and to prevent the displacement of the side brick's.-

lclaim:- 1. ln' a locomotive fire box a bottom closing pan having a depressed central portion surrounded by a marginal substantially horizontal shelf, refractory bricks lining the bottom and sides of the depressed portion, and refractory bricks cdvering said shelf, said shelf bricks being provided with grooves in their lower sides, rigid projections on the shelf entering said grooves and said side bricks having projections rising above said shelf and entering said grooves, as and for the purpose specified.

2. ln a locomotive lire box a bottom closing pan having a depressed central portion and a horizontal shelf joining the edges of the depressed portion to the lire box, an upstanding rib on the inner edge of the shelf, refractory bricks lining the bottom and sides of the depressed portion and refractory bricks protecting the shelf, the inner ends of the shelf bricks having -grooves receiving both-said ribs and the upper ends of said side bricks, as and for the purpose specified.

3. ln a locomotivevre box a bottom closing pan having a depressed central portion surrounded by a 'marginal substantially horizontal shelf, refractory bricks lining the bottomand sides of the depressed portion, and refractory bricks covering said shelf, an upstanding metallic rib extending along the inner edge of the shelf, said side bricks having projections rising above said shelf and said shelf bricks having grooves in their lower sides to receive said ribs and said projections, as and for the purpose specified. v

In-testimony .whereof I have hereunto set my hand this 6th day of October, 1914, inV 

